Consensus phylogenetic tree based on the maximum likelihood (ML) analysis of three Thai Prosopistoma species (the best model: T92 +G, parameter = 0.2619). The bootstrap consensus tree inferred from 1,000 replicates. Values above the branches are ML bootstrap values (> 70%). Baetisca laurentina from GenBank was used as the outgroup. There were a total of 658 positions in the final dataset. Abbreviations are the same as those found in Table 1.